%Boolean algebra
clear %clears everything.
clc %clears the screen

x = 10; %Now x = 10.
y = 1; %Guess what y is equal to.

%What if we test ~(x < 2) ?
~(x < 2) %x < 2 is false, so its negation is true...

%What if we test (x > 2)&(y<1) ?
(x>2)&(y<1) %It is false since (y<1) is false...

%But if we test (x>2)&(y>0) : 
(x>2)&(y>0) %Both are true, so the result is true.


%Now what if we test (x > 2)||(y<1) ?
(x > 2)||(y<1) %It is now true since only one is required to be true for 
                %the or operator...

%With this, we can already look at the next part : flow control with the if
%operator.
%Assume we want to perform some task only if x is positive. We could then
%have : 

if( x >= 0 ) %If x is greater or equal than zero...
    %Begin conditionnal code
    disp('I will execute all the code between those lines');
    
    disp('I could do many lines of stuff');
    
    disp('And then some !');
    
    %End conditionnal code
else
    %Begin the code if x is not greater or equal than zero.
    
    disp('If x is greater or equal than zero, this will never be printed !');
    
    %End the code if x is not greater or equal than zero.
end %End of the if statement. 

disp('I am done now. Bye bye !');